UPS truck involved in fatal collision

Witnesses say a UPS truck nearly hit a building at 15th and Utah and one person was killed.

The driver passed away and the medical examiner believes it was from a natural cause. A witness saw the big UPS truck cross through the intersection at 15th and Utah and veer up onto the sidewalk. The truck hit some barricades which prevented him from hitting the building.

The medical examiner believed the driver suffered from a heart attack or a stroke - some kind of natural cause and that's why the truck went up on the sidewalk. Part of the street is closed. The identity of the man has not been given, but his family was at the scene.